Pile hole latticed column positioning system and construction method: Fid-Bau Portal

Pile hole latticed column positioning system and construction method

DONG WEN / LIANG PENGHUI / XU HUI / WANG HE / WANG BOYANG / YAN PENG

The invention relates to the technical field of building construction, and provides a pile hole latticed column positioning system and a construction method.The system comprises a rotary pile casing arranged on an existing cast-in-place pile casing and provided with a first positioning piece used for being matched with a positioning mark preset on the existing cast-in-place pile casing; the guide positioning frame is arranged at the top end of the rotary protective cylinder; the at least two groups of limiting support frameworks are distributed at intervals along the height direction of the guide positioning frame; the limiting supporting framework comprises a limiting plate belt and a limiting sleeve; the limiting sleeves are vertically arranged and distributed on the at least two limiting plate belts of each limiting supporting framework. And each extension rod is vertically arranged in the limiting sleeves of the at least two sets of limiting supporting frameworks in a penetrating mode, and the extension rods are connected with the latticed column. According to the method, the perpendicularity deviation of the latticed column is reduced, and the perpendicularity control precision of the latticed column is improved; the torsion angle of the latticed column is limited, and torsion deformation and inclined deformation of the latticed column are prevented.

本申请涉及建筑施工技术领域，提供一种桩孔格构柱定位系统及施工方法，系统包括：旋转护筒，设置于既有灌注桩护筒上，旋转护筒上设置有第一定位件，用于与既有灌注桩护筒上预设的定位标记相适配；导向定位架，设置在旋转护筒的顶端；至少两组限位支撑骨架，沿导向定位架的高度方向间距分布；限位支撑骨架包括限位板带和限位套筒；限位套筒竖立设置，分布在每组限位支撑骨架的至少两个限位板带上；以及多个接长杆，每个接长杆竖立穿设在至少两组限位支撑骨架的限位套筒中，多个接长杆连接格构柱。本发明降低了格构柱的垂直度偏差，提高了格构柱的垂直度控制精度；限制了格构柱的扭转角度，防止格构柱的扭转变形与倾斜变形。

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